| 1 | /* |
| 2 | * iterator.c |
| 3 | * |
| 4 | * Babeltrace Notification Iterator |
| 5 | * |
| 6 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 7 | * |
| 8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 | * of this software and associated documentation files (the "Software"), to deal |
| 12 | * in the Software without restriction, including without limitation the rights |
| 13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 | * copies of the Software, and to permit persons to whom the Software is |
| 15 | * furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included in |
| 18 | * all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 26 | * SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #include <babeltrace/compiler.h> |
| 30 | #include <babeltrace/ref.h> |
| 31 | #include <babeltrace/plugin/component.h> |
| 32 | #include <babeltrace/plugin/source-internal.h> |
| 33 | #include <babeltrace/plugin/notification/iterator.h> |
| 34 | #include <babeltrace/plugin/notification/iterator-internal.h> |
| 35 | |
| 36 | static |
| 37 | void bt_notification_iterator_destroy(struct bt_object *obj) |
| 38 | { |
| 39 | struct bt_notification_iterator *iterator; |
| 40 | |
| 41 | assert(obj); |
| 42 | iterator = container_of(obj, struct bt_notification_iterator, |
| 43 | base); |
| 44 | assert(iterator->user_destroy || !iterator->user_data); |
| 45 | iterator->user_destroy(iterator); |
| 46 | g_free(iterator); |
| 47 | } |
| 48 | |
| 49 | BT_HIDDEN |
| 50 | struct bt_notification_iterator *bt_notification_iterator_create( |
| 51 | struct bt_component *component) |
| 52 | { |
| 53 | struct bt_notification_iterator *iterator = NULL; |
| 54 | |
| 55 | if (!component || |
| 56 | bt_component_get_type(component) != BT_COMPONENT_TYPE_SOURCE) { |
| 57 | goto end; |
| 58 | } |
| 59 | |
| 60 | iterator = g_new0(struct bt_notification_iterator, 1); |
| 61 | if (!iterator) { |
| 62 | goto end; |
| 63 | } |
| 64 | |
| 65 | bt_object_init(iterator, bt_notification_iterator_destroy); |
| 66 | end: |
| 67 | return iterator; |
| 68 | } |
| 69 | |
| 70 | BT_HIDDEN |
| 71 | enum bt_notification_iterator_status bt_notification_iterator_validate( |
| 72 | struct bt_notification_iterator *iterator) |
| 73 | { |
| 74 | enum bt_notification_iterator_status ret = |
| 75 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 76 | |
| 77 | if (!iterator || !iterator->get || !iterator->next) { |
| 78 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; |
| 79 | goto end; |
| 80 | } |
| 81 | end: |
| 82 | return ret; |
| 83 | } |
| 84 | |
| 85 | enum bt_notification_iterator_status bt_notification_iterator_set_get_cb( |
| 86 | struct bt_notification_iterator *iterator, |
| 87 | bt_notification_iterator_get_cb get) |
| 88 | { |
| 89 | enum bt_notification_iterator_status ret = |
| 90 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 91 | |
| 92 | if (!iterator || !get) { |
| 93 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; |
| 94 | goto end; |
| 95 | } |
| 96 | |
| 97 | |
| 98 | end: |
| 99 | return ret; |
| 100 | } |